iPadOS 9.9.12.1 (build 16B5059d) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2018-09-18T17:20:04Z. The update package is 1.98 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6575390a615d2f5c12e5a6dacbba8179ede66280.zip.